package testjava;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Random;
import java.util.Scanner;


public class MemberDao {
    Scanner input = new Scanner(System.in);
    List<Member> memberList = new ArrayList<Member>();

    public void menu() {
        System.out.println("*************************欢迎进入超市会员管理系统*************************");
        System.out.println("1.积分累计       2.积分兑换       3.查询剩余积分       4.修改密码       5.开卡       6.退出");
        System.out.println("*******************************************************************");
        System.out.print("请选择：");
    }

    public void start() {
        do {
            menu();
            int choose = input.nextInt();
            switch (choose) {
                case 1:
                    if (saveScore()) {
                        System.out.println("积分累计成功！");
                    } else {
                        System.out.println("积分累计失败！");
                    }
                    continue;
                case 2:
                    if (minusScore()) {
                        System.out.println("积分兑换成功！");
                    } else {
                        System.out.println("积分兑换失败！");
                    }
                    continue;
                case 3:
                    showScore();
                    continue;
                case 4:
                    if (changePwd()) {
                        System.out.println("密码修改成功！");
                    } else {
                        System.out.println("密码修改失败！");
                    }
                    continue;
                case 5:
                    register();
                    continue;
                case 6:
                    System.out.println("感谢您的使用，欢迎下次使用！");
                    break;
                default:
                    System.out.println("您的操作有误，请重新选择：");
                    continue;
            }
            break;
        } while (true);
    }

    //查询会员是否存在,会员密码不区分大小写
    public Member hasMember(Member member) {
        if (member.getPassword() != null) {
            for (int i = 0; i < memberList.size(); i++) {
                if (memberList.get(i).getCardId() == member.getCardId() && memberList.get(i).getPassword().equalsIgnoreCase(member.getPassword())) {
                    return memberList.get(i);
                }
            }
        } else {
            for (int i = 0; i < memberList.size(); i++) {
                if (memberList.get(i).getCardId() == member.getCardId()) {
                    return memberList.get(i);
                }
            }
        }
        return null;
    }

    //修改会员密码
    public boolean changePwd() {
        Member member = new Member();
        System.out.print("请输入您的会员卡号：");
        member.setCardId(input.nextInt());
        System.out.print("请输入您的会员卡密码：");
        member.setPassword(input.next());
        if ((member = hasMember(member)) != null) {
            System.out.print("请输入新的会员密码：");
            //新的会员密码不能小于6位
            String pwd;
            boolean flag = true;
            do {
                pwd = input.next();
                if (pwd.length() < 6) {
                    System.out.print("会员密码不能小于6位，请重新输入会员密码：");
                    flag = false;
                } else {
                    flag = true;
                    member.setPassword(pwd);
                }
            } while (!flag);
            return true;
        } else {
            System.out.println("您输入的会员卡号或密码错误,无法修改密码！");
        }
        return false;
    }

    //积分累计
    public boolean saveScore() {
        Member member = new Member();
        System.out.print("请输入您的会员卡号：");
        member.setCardId(input.nextInt());
        System.out.print("请输入您的会员卡密码：");
        member.setPassword(input.next());
        if ((member = hasMember(member)) != null) {
            System.out.print("请输入您此次消费金额（消费1元累计1积分）：");
            int score = input.nextInt();
            member.setScore(member.getScore() + score);
            return true;
        } else {
            System.out.println("您输入的会员卡号或密码错误，无法积累积分！");
        }
        return false;
    }

    //积分兑换
    public boolean minusScore() {
        Member member = new Member();
        System.out.print("请输入您的会员卡号：");
        member.setCardId(input.nextInt());
        System.out.print("请输入您的会员卡密码：");
        member.setPassword(input.next());
        if ((member = hasMember(member)) != null) {
            System.out.print("请输入您需要兑换使用的积分（100积分抵用0.1元，不足100的积分不做抵用）：");
            int score = input.nextInt();
            if (score <= member.getScore()) {
                member.setScore(member.getScore() - score);
                System.out.println("您的消费金额中使用会员积分抵消" + score / 100 * 0.1 + "元");
                return true;
            } else {
                System.out.println("抱歉，您的积分不够，无法抵用消费金额.");
            }
        } else {
            System.out.println("您输入的会员卡号或密码错误，无法完成积分兑换！");
        }
        return false;
    }

    //生成随机卡号
    public int createId() {
        boolean flag = true;
        Random random = new Random();
        int id = random.nextInt(99999999);
        for (Member member : memberList) {
            if (member.getCardId() == id) {
                id = random.nextInt(99999999);
            }
        }
        return id;
    }

    //开卡
    public void register() {
        Member member = new Member();
        System.out.print("请输入注册姓名：");
        member.setName(input.next());
        //会员卡号随机生成
        member.setCardId(this.createId());
        System.out.print("请输入注册密码：");
        //会员密码不能小于6位
        String pwd;
        boolean flag = true;
        do {
            pwd = input.next();
            if (pwd.length() < 6) {
                System.out.print("会员密码不能小于6位，请重新输入注册密码：");
                flag = false;
            } else {
                flag = true;
                member.setPassword(pwd);
            }
        } while (!flag);
        member.setScore(100);

        //增加会员开卡日期
        Date date = new Date();
        String registDate = new SimpleDateFormat("yyyy-MM-dd").format(date);
        member.setRegistDate(registDate);

        memberList.add(member);
        System.out.println("恭喜，开通会员卡成功，系统赠送您100积分！您的会员卡号为：" + member.getCardId());
    }

    //查询积分
    public void showScore() {
        Member member = new Member();
        System.out.print("请输入您的会员卡号：");
        member.setCardId(input.nextInt());
        System.out.print("请输入您的会员卡密码：");
        member.setPassword(input.next());
        if ((member = hasMember(member)) != null) {
            System.out.println("姓名\t会员卡号\t剩余积分\t开卡日期");
            System.out.println(member.getName() + "\t\t" + member.getCardId() + "\t\t" + member.getScore() + "\t\t" + member.getRegistDate());
        } else {
            System.out.println("您输入的会员卡号或密码错误，无法查询积分！");
        }
    }
}
